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BJT Amplifiers - General Questions (8)

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BJT Amplifiers - General Questions

57. 

The ________ model fails to account for the output impedance level of the device and the feedback effect from output to input.

A. hybrid equivalent
B. re
C. beta (4)
D. Thevenin

Answer: Option B

Explanation:

No answer description available for this question.
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58. 

An emitter-follower is also known as a

A. common-emitter amplifier.
B. common-base amplifier.
C. common-collector amplifier.
D. Darlington pair.

Answer: Option C

Explanation:

No answer description available for this question.
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59. 

What is the most important r parameter for amplifier analysis?

A. rb′
B. rc′
C. re′

Answer: Option C

Explanation:

No answer description available for this question.

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60. 

What is the typical value of the current gain of a common-base configuration?

A. Less than 1
B. Between 1 and 50
C. Between 100 and 200
D. Undefined

Answer: Option A

Explanation:

No answer description available for this question.

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61. 

For a common-emitter amplifier, the purpose of swamping is

A. to minimize gain.
B. to reduce the effects of r'e
C. to maximize gain.
D. no purpose.

Answer: Option B

Explanation:

No answer description available for this question.

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62. 

Refer to this figure. Determine the value of Av.

mcq6_1009_1 (1)

A. 49.6
B. 5
C. 100
D. 595

Answer: Option B

Explanation:

No answer description available for this question.

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63. 

Which of the following conditions must be met to allow the use of the approximate approach in a voltage-divider bias configuration?

A. beta (4) re > 10R2
B. beta (4) RE > 10R2
C. beta (4) RE < 10R2
D. beta (4) re < 10R2
E. beta (4) re < 10R2

Answer: Option D

Explanation:

No answer description available for this question

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64. 

Which of the following is referred to as the reverse transfer voltage ratio?

A. hi
B. hr
C. hf
D. ho

Answer: Option B

Explanation:

No answer description available for this question.

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